Audio headset



FIG. 1 is a perspective view of an audio headset showing the new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The dotted line portions of the drawings represent environmental structure only and do not form part of the claimed design. 

CLAIM The ornamental design for audio headset, substantially as shown and described. 